Timeline for product spaces of rationals
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 4, 2012 at 15:24 | comment | added | Julien Melleray | The result mentioned by Apollo above also shows that for any nonempty countable metric $X$, $X \times \mathbb Q$ is homeomorphic to $\mathbb Q$ - This is one of the results I try to keep in mind to remind myself that my intuition regarding topological spaces is not to be trusted! | |
| Oct 4, 2012 at 14:22 | vote | accept | Marcus | ||
| Oct 4, 2012 at 14:20 | answer | added | Todd Trimble | timeline score: 7 | |
| Oct 4, 2012 at 14:12 | comment | added | Apollo | They're all countable metric spaces with no isolated points. See at.yorku.ca/p/a/c/a/25.htm | |
| Oct 4, 2012 at 13:55 | comment | added | Marcus | can you explain how? | |
| Oct 4, 2012 at 13:50 | comment | added | Apollo | They're homeomorphic. | |
| Oct 4, 2012 at 13:43 | history | asked | Marcus | CC BY-SA 3.0 |